ambassador stevens. we'll have live coverage of the memorial. >> i'm santda patel live from the roof of abc 7 news. we have a warming trend that will take temperatures up to summer like selfs. i'll have the numbers coming up. >> this is a live picture now of the memorial service taking place in san francisco city hall for ambassador chris stevens. stevens is a bay area native son killed in the september 11th attacks on the u.s. consulate in benghazi, libya. good evening. >> chris stevens grew up in piedmont and went to uc berkeley. carolyn tileler joins us live with tonight's memorial. >> cheryl, the tone here is respectful. not really somber. this is billed as a celebration of the life of the late ambassador. let's take you back inside mayor ed lee offers the city hall rotunda to the family for the services. the late ambassador's parents, brother and two sisters are here as well as friends from piedmont where he grew up and schools he attended. and of course there are colleagues from the state departmen